The complaint here is, that those business are not necessarily "bringing people into the community", unless you are talking about passive users, who do not contribute. The businesses simply use the stuff built at no cost to rake in big money, while the person, who did the actual work does not see a cent. This is different with copyleft licenses like AGPL. Only that many businesses are so afraid of contributing anything at all, that they often don't want to use AGPL or even GPL licensed software.